title: Navigation technique for MR-endoscope system using a wireless accelerometer-based remote control device.
abstract: The MR-endoscope system can perform magnetic resonance (MR) imaging during endoscopy and show the images obtained by using endoscope and MR. The MR-endoscope system can acquire a high-spatial resolution MR image with an intraluminal radiofrequency (RF) coil, and the navigation system shows the scope's location and orientation inside the human body and indicates MR images with a scope view. In order to conveniently perform an endoscopy and MR procedure, the design of the user interface is very important because it provides useful information. In this study, we propose a navigation system using a wireless accelerometer-based controller with Bluetooth technology and a navigation technique to set the intraluminal RF coil using the navigation system. The feasibility of using this wireless controller in the MR shield room was validated via phantom examinations of the influence on MR procedures and navigation accuracy. In vitro examinations using an isolated porcine stomach demonstrated the effectiveness of the navigation technique using a wireless remote-control device.
authors.forename: Etsuko
authors.initials: E
authors.lastname: Kumamoto
authors.forename: Akihiro
authors.initials: A
authors.lastname: Takahashi
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Matsuoka
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Morita
authors.forename: Hiromu
authors.initials: H
authors.lastname: Kutsumi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Azuma
authors.forename: Kagayaki
authors.initials: K
authors.lastname: Kuroda
mesh_terms: D061725:Accelerometry / Q000295:instrumentation*; D000818:Animals; D019723:Endoscopes; D004724:Endoscopy / Q000295:instrumentation*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods*; D019047:Phantoms, Imaging; D011846:Radio Waves; D058998:Remote Sensing Technology / Q000295:instrumentation*; D059629:Signal-To-Noise Ratio; D013270:Stomach / Q000601:surgery; D034421:Sus scrofa; D059015:Wireless Technology / Q000295:instrumentation*